Kennen's abilities add Marks of the Storm to opponents which last for 8 seconds. An opponent is stunned for 1 second upon receiving 3 Marks of the Storm, and Kennen receives 25 energy. The stun has a diminished effect, and will only stun for approx 0.5 seconds if applied more than once within 7 seconds.

Ability

Description

Rank Up

Thundering Shuriken

(Active): Kennen throws a charged shuriken in a line in front of him, dealing magic damage and adding a Mark of the Storm to the first opponent that it hits.

Cost: 65 / 60 / 55 / 50 / 40 enegy

Range: 1,050

Cooldown: 8 / 7 / 6 / 5 / 4 seconds

Magic Damage: 75 / 115 / 155 / 195 / 235 (+0.75 per ability power)

Electrical Surge

(Passive): Every 5 attacks, Kennen will deal extra magic damage equal to a percentage of his attack damage and add a Mark of the Storm to his target.

Magic Damage: 40 / 50 / 60 / 70 / 80 % of his attack damage

(Active): Surges electricity through all nearby targets afflicted by Mark of the Storm, dealing magic damage and adding another mark.

Cost: 45 energy

Range: 900

Cooldown: 14 / 12 / 10 / 8 / 6 seconds

Magic Damage: 65 / 95 / 125 / 155 / 185 (+0.55 per ability power)

Lightning Rush

(Active): For 3 seconds Kennen's base movement speed is doubled. He also gains the ability to pass through units, dealing magic damage to all enemy units in the process, and restoring 40 energy from the first enemy he hits. This ability only deals 50% damage to minions. Additionally, for 4 seconds Kennen's armor and magic resistance are increased.

While Lightning Rush is active, he can activate it again, to cancel the first part of the ability.

Cost: 100 / 95 / 90 / 85 / 80 energy

Cooldown: 10 / 9 / 8 / 7 / 6 seconds

Magic Damage: 85 / 125 / 165 / 205 / 245 (+0.6 per ability power)

Armor and Magic Resistance Bonus: 10 / 20 / 30 / 40 / 50

Slicing Maelstrom

(Active): Kennen summons a magical storm that deals magic damage to a random enemy champion near Kennen every 0.5/0.4/0.33 seconds. The storm hits several times, increasing with level, and cannot hit the same target more than 3 times. A Mark of the Storm is applied to enemies each time they are hit.